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Back to Grow Questions
Indoor grow space
Theia
started grow question 6y ago
ive made a growspace with a negative preasure air system. Any thoughts on what i may need to change would be great. Maintaining RH may be an issue with such a high air exchange rate. but the fact i do not need intake fan is great.
Open
Setup. Ventilation
Setup. Other
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Answer
Theia
answered grow question 6y ago
opps i mean 420m3 per hour not minute..lol
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Theia
answered grow question 6y ago
I was thinking to leave my humidifier in the secondary space so all air being drawn in is at the required humidity??
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Similar Grow Questions
Solved
az420
Trouble keeping my RH below 65% in grow tent (I water once per 24hrs, 20% runoff)
Hello fellow growers! I am having trouble keeping my RH lower than 65%. Any ideas (without using a dehumidifier)? For extraction, I have a RAM mixed flow with a passive intake. It seems for the space (0.8mx0.8m), that this is more than enough. Any help is appreciated. Thanks!
Week 4
Setup. Ventilation
Setup. Other
6y ago
4
4
Solved
VeggieTales
Help cooling grow tent 4x4
Please experienced growers I need advice. I’m runnning a 4x4 grow tent and the temp is constantly 84-87 degrees. How do I lower temp. I have a 190cfm exhaust and 100cfm intake, 2 fans, and a humidifier. Im growing exhausted and frustrated trying to get the temp down.😅please help
Setup. Ventilation
Setup. Other
6y ago
3
5
Solved
UpInSmoke420
What's a good dehumidifier for a small grow tent??
What's a good dehumidifier? At the moment I'm only using those cheap little things but my humidity is staying at 60/65 and want it lower for flowering. My room ain't big 1.2m x1.2m
Setup. Ventilation
Setup. Other
6y ago
2
Solved
Nurse
humidity
there is a space of 1.20 by 1.20 m with a height of 3 meters with a humidity of 75 & a temperature of 23 degrees.I have to increase the humidity to 40% for the last few weeks, Is there a way to do this without buying a dehumidifier? Now I have a fan and a reverse fan
Setup. Ventilation
Setup. Other
6y ago
1
1
Solved
Jannis_Botanicum
Air-Intake / Equipment question.
Ok, so i bought a air outtake system for my grow tent with a active carbon filter so my whole house doesn't smell like weed as it does now. My question is can i just install my air outtake in there and close the tent without having a air intake ? Or will that cause Problems ?
Setup. Strain · Autoflowering
Setup. Ventilation
Setup. Other
5y ago
2
8
Solved
buddhi_coop
Temperature Control
Help! How do I get my temperature down? I have all 3 vents open & 4 fans blowing. My air duct hasn’t come in the mail yet so I can’t set up my exhaust fan yet.
Setup. Lighting
Setup. Ventilation
Setup. Other
5y ago
3
3
Solved
madflavoursgarden
Grow Tent/Room setup in the basement - dehumidifier or humidifier needed?
I’m planning a small grow setup in my basement and have a room that’s holding a steady 17–18 °C (62–64 °F) with about 55–58% relative humidity. My plan is to vent the exhaust from the grow box straight outside through an existing duct. Will I need a de- or humidifier? Thanks!
Setup. Ventilation
Setup. Other
1y ago
2
2
Solved
buddhi_coop
Set Up Tent
How should I set up my carbon filter, exhaust fan & air ducts? I’m in limited space right now but want to make sure I get good air circulation still. I set it up the wrong way the last time I had it up but it was already up so I just left it. Also, my fans. Where should they go ?
Setup. Lighting
Setup. Ventilation
Setup. Other
5y ago
1
1
Solved
BullWeedDog
Como controlar renovación del aire en índoor
Como controlar la renovación del aire en índoor, cada cuánto debo apagar y encender los extractores e infractores del cultivo, puedo dejarlos apagados en las noches mientras la bombilla está apagada??
Other. General questions
Setup. Ventilation
Setup. Other
4y ago
3
3
Solved
GodOfAnger
Currently using a 4x8 tent in a garage that is dusty. would getting a extra intake be better for my plants?
Currently using a 200mm inline exhaust with a max cfm of 537,96 and using a intake with a max cfm of 194. currently using the exhaust on medium setting so 466 cfm. would it be better for my plants to get more air from outside with a new but small intake of about 128 cfm ?
Other. General questions
Setup. Ventilation
Setup. Other
3y ago
1
1
Solved
BUDLUST
Looking for quietest, most energy efficent 5" inline fan to buy.
Hello Any recommendations on a quiet, energy efficient 5" EC inline fan? & the best 6" filter to go with it? Need to get it right this time lol. Cheers.
Setup. Ventilation
Setup. Other
5y ago
2
4
Solved
TripleCcannabis
Low humidity issue
Tents 20'' × 30''. Using a vivosun 6'' inline fan to exhaust with passive intake to create negative pressure. I have a good humidifier but even on full the rh doesnt go above 40%. Not unless the room the tent vents into becomes super humid as well.
Setup. Ventilation
Setup. Other
7y ago
1
4
Solved
Cannabingrowin
Tents. 48 inches by 48 inches and 80 inches tall. What is your brand and why?
I need a new tent. I am thinking AC infinity or Vivospectra. What should I look for? Strength, Thickness of material, Holes for ducts, anything else? What is your reccomeded tent and why? Also how long do AC infinity carbon scrubbers last with active in and outake they are 8 inch
Setup. Ventilation
Setup. Other
5y ago
1
Solved
RGGROW
Maintaining VPD
I've got my photoperiod doing well in a 2x2 tent. I'm trying to regulate my VPD with what I have on hand. Currently I'm running my exhaust fan for 8 minutes every hour to get an average VPD around 1, but I'm concerned about the swings. Am I micromanaging?
Setup. Ventilation
Setup. Other
2y ago
1
Solved
UpInSmoke420
What equipment do I need to close my tent fully??
I want to be able to close my tent completely without it getting too hot in there, I currently have it open to keep it cool, but what do I need to close it? Isit just some ducting and fans and also a air con unit?
Setup. Ventilation
Setup. Other
6y ago
1
4
Solved
TheeLemon
High heat Low humidity
Week 6 of my 1st ever grow. Having a problem of high heat, low humidity. I closed my tent, and woke up to 40°C & 12% humidity. Ive read that this problem is often what causes a plant to go Hermie Just looking for some thoughts on how to fix this / how my ladies are doing generaly
Setup. Ventilation
Setup. Other
5y ago
6
6
Solved
EthosMultipassMemberRovairok
Good
[email protected]
What's a good dehumidifier for around 300 or so I can't tell what's shit or what's good? Tr hat all say the same shit
Other. Other
Setup. Ventilation
Setup. Other
6y ago
1
Solved
TheUk420Show
Possible Stealth Grow ?
Hey follow growers, Quick question about stealth grows. Please see the last two pictures of this update, there is a unused closet in my room built in. Do you think if I lined the walls with silver sheeting and added a few led lights ? main concern is Airflow nothing there so ?
Week 5
Setup. Ventilation
Setup. Other
6y ago
5
2